/*
	A simple class for displaying file information and progress
	Note: This is a demonstration only and not part of SWFUpload.
	Note: Some have had problems adapting this class in IE7. It may not be suitable for your application.
*/

// Constructor
// file is a SWFUpload file object
// targetID is the HTML element id attribute that the FileProgress HTML structure will be added to.
// Instantiating a new FileProgress object with an existing file will reuse/update the existing DOM elements
function FileProgress(file, targetID, statusID) {
	this.fileProgressID = 'divFileProgress';
	this.fileStatusID = 'divFileStatus';

	this.opacity = 100;
	this.height = 0;

	this.fileProgressWrapper = document.getElementById(this.fileProgressID);
  this.fileStatusWarpper = document.getElementById(this.fileStatusID);
  
  
	if (!this.fileProgressWrapper) {
		this.fileProgressWrapper = document.createElement("div");
		this.fileProgressWrapper.className = "progressWrapper";
		this.fileProgressWrapper.id = this.fileProgressID;
		
		this.fileProgressElement = document.createElement("div");
		this.fileProgressElement.className = "progressContainer";
		
		var progressCancel = document.createElement("a");
		progressCancel.className = "progressCancel";
		progressCancel.href = "#";
		progressCancel.style.visibility = "hidden";
		progressCancel.appendChild(document.createTextNode(" "));
		
		var progressBar = document.createElement("div");
    progressBar.className = "progressBarInProgress";
    
    this.fileProgressElement.appendChild(progressCancel);
    this.fileProgressElement.appendChild(progressBar);
		this.fileProgressWrapper.appendChild(this.fileProgressElement);
		
		document.getElementById(targetID).appendChild(this.fileProgressWrapper);
	} else {
	  this.fileProgressElement = this.fileProgressWrapper.firstChild;
	}
	
	if (!this.fileStatusWarpper) {
	  
	  this.fileStatusWarpper = document.createElement("div");
    this.fileStatusWarpper.className = "statusWrapper";
    this.fileStatusWarpper.id = this.fileStatusID;
	  
	  this.filestatusElement = document.createElement("div");
    this.filestatusElement.className = "statusContainer";
	  
//		var progressText = document.createElement("div");
//		progressText.className = "progressName";
//		progressText.appendChild(document.createTextNode(file.name));

		var fileStatus = document.createElement("div");
		fileStatus.className = "progressBarStatus";
		fileStatus.innerHTML = "&nbsp;";

		
//		this.filestatusElement.appendChild(progressText);
		this.filestatusElement.appendChild(fileStatus);
    this.fileStatusWarpper.appendChild(this.filestatusElement);
    
		document.getElementById(statusID).appendChild(this.fileStatusWarpper);
		
//    fadeIn(this.fileProgressWrapper, 0);
	} else {
//		this.fileProgressElement = this.fileProgressWrapper.firstChild;
//		this.reset();
	  this.fileStatusElement = this.fileStatusWarpper.firstChild;
	}

	this.height = this.fileProgressWrapper.offsetHeight;
	this.setTimer(null);


}

FileProgress.prototype.setTimer = function (timer) {
	this.fileProgressElement["FP_TIMER"] = timer;
};
FileProgress.prototype.getTimer = function (timer) {
	return this.fileProgressElement["FP_TIMER"] || null;
};

FileProgress.prototype.reset = function () {
	this.fileProgressElement.className = "progressContainer";
	this.fileStatusElement.className = "statusContainer";
	
	this.fileStatusElement.childNodes[0].innerHTML = "&nbsp;";
	this.fileStatusElement.childNodes[0].className = "progressBarStatus";
	
	this.fileProgressElement.childNodes[1].className = "progressBarInProgress";
	this.fileProgressElement.childNodes[1].style.width = "0%";
	
//	this.appear();
};

FileProgress.prototype.setProgress = function (percentage) {
	this.fileProgressElement.className = "progressContainer green";
	this.fileProgressElement.childNodes[1].className = "progressBarInProgress";
	this.fileProgressElement.childNodes[1].style.width = percentage + "%";
 
//	this.appear();
};
FileProgress.prototype.setComplete = function () {
	this.fileProgressElement.className = "progressContainer blue";
	this.fileProgressElement.childNodes[1].className = "progressBarComplete";
	this.fileProgressElement.childNodes[1].style.width = "100%";

//	var oSelf = this;
//	this.setTimer(setTimeout(function () {
//		oSelf.disappear();
//	}, 10000));
};
FileProgress.prototype.setError = function () {
	this.fileProgressElement.className = "progressContainer red";
	this.fileProgressElement.childNodes[1].className = "progressBarError";
	this.fileProgressElement.childNodes[1].style.width = "";

//	var oSelf = this;
//	this.setTimer(setTimeout(function () {
//		oSelf.disappear();
//	}, 5000));
};
FileProgress.prototype.setCancelled = function () {
	this.fileProgressElement.className = "progressContainer";
	this.fileProgressElement.childNodes[1].className = "progressBarError";
	this.fileProgressElement.childNodes[1].style.width = "";

//	var oSelf = this;
//	this.setTimer(setTimeout(function () {
//		oSelf.disappear();
//	}, 2000));
};
FileProgress.prototype.setStatus = function (status) {
	this.filestatusElement.childNodes[0].innerHTML = status;
};

// Show/Hide the cancel button
FileProgress.prototype.toggleCancel = function (show, swfUploadInstance) {
	this.fileProgressElement.childNodes[0].style.visibility = show ? "visible" : "hidden";
	if (swfUploadInstance) {
		var fileID = this.fileProgressID;
		this.fileProgressElement.childNodes[0].onclick = function () {
			swfUploadInstance.cancelUpload(fileID);
			return false;
		};
	}
};

FileProgress.prototype.appear = function () {
	if (this.getTimer() !== null) {
		clearTimeout(this.getTimer());
		this.setTimer(null);
	}
	
	if (this.fileProgressWrapper.filters) {
		try {
			this.fileProgressWrapper.filters.item("DXImageTransform.Microsoft.Alpha").opacity = 100;
		} catch (e) {
			// If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.
			this.fileProgressWrapper.style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity=100)";
		}
	} else {
		this.fileProgressWrapper.style.opacity = 1;
	}
		
	this.fileProgressWrapper.style.height = "";
	
	this.height = this.fileProgressWrapper.offsetHeight;
	this.opacity = 100;
	this.fileProgressWrapper.style.display = "";
	
};

// Fades out and clips away the FileProgress box.
FileProgress.prototype.disappear = function () {

	var reduceOpacityBy = 15;
	var reduceHeightBy = 4;
	var rate = 30;	// 15 fps

	if (this.opacity > 0) {
		this.opacity -= reduceOpacityBy;
		if (this.opacity < 0) {
			this.opacity = 0;
		}

		if (this.fileProgressWrapper.filters) {
			try {
				this.fileProgressWrapper.filters.item("DXImageTransform.Microsoft.Alpha").opacity = this.opacity;
			} catch (e) {
				// If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.
				this.fileProgressWrapper.style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity=" + this.opacity + ")";
			}
		} else {
			this.fileProgressWrapper.style.opacity = this.opacity / 100;
		}
	}

	if (this.height > 0) {
		this.height -= reduceHeightBy;
		if (this.height < 0) {
			this.height = 0;
		}

		this.fileProgressWrapper.style.height = this.height + "px";
	}

	if (this.height > 0 || this.opacity > 0) {
		var oSelf = this;
		this.setTimer(setTimeout(function () {
			oSelf.disappear();
		}, rate));
	} else {
		this.fileProgressWrapper.style.display = "none";
		this.setTimer(null);
	}
};